Teacher:In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Teacher: Now, understand the problem? Solve this instance: Question: How many post resurrection appearances of Jesus are in the Gospel of Mark? Passage:The New Testament has been preserved in three major manuscript traditions: the 4th century CE Alexandrian text-type; the Western text-type, also very early but prone to paraphrase and other corruptions; and the Byzantine text-type, which makes up above 80% of all manuscripts, the majority comparatively very late in the tradition. Scholars regard the Alexandrian text-type as generally more authoritative when treating textual variations. The majority of differences are minor—matters such as variant spellings—although at a few points the oldest manuscripts show important inconsistencies compared with the more recent ones: these include the endings of Mark 16, describing Jesus' post-resurrection appearances, from the Gospel of Mark; the absence from John of the story of the woman taken in adultery; and an explicit reference to the Trinity in 1 John (the Comma Johanneum). Scholars such as Bart Ehrman have speculated that John 21 was appended to the gospel at a later date, but no manuscript evidence for this assertion has been discovered.

Student:
a